/*
 * $Id: TTCodePage.java,v 1.3 2004/05/16 12:59:07 eed3si9n Exp $
 * 
 * $Copyright: copyright (c) 2003-2004, e.e d3si9n $
 * $License: 
 * This source code is part of DoubleType.
 * DoubleType is a graphical typeface designer.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This Program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 * In addition, as a special exception, e.e d3si9n gives permission to
 * link the code of this program with any Java Platform that is available
 * to public with free of charge, including but not limited to
 * Sun Microsystem's JAVA(TM) 2 RUNTIME ENVIRONMENT (J2RE),
 * and distribute linked combinations including the two.
 * You must obey the GNU General Public License in all respects for all 
 * of the code used other than Java Platform. If you modify this file, 
 * you may extend this exception to your version of the file, but you are not
 * obligated to do so. If you do not wish to do so, delete this exception
 * statement from your version.
 * $
 */
 
package org.doubletype.ossa.truetype;

import java.util.*;
import java.nio.charset.*;

/**
 * @author e.e
 */
public class TTCodePage {
	static public TTCodePage US_ASCII = new TTCodePage("US-ASCII",
		"US-ASCII",
		64);
	static public TTCodePage Latin_1 = new TTCodePage("windows-1252",
			"Latin 1 windows-1252",
			0);
	static private boolean s_isInitialized = false;
	static private ArrayList<TTCodePage> s_list = new ArrayList<>();
	
	static public String [] getNames() {
		initList();
		String [] retval = new String[s_list.size()];
		int i;
		for (i = 0; i < s_list.size(); i++) {
			TTCodePage codePage = (TTCodePage) s_list.get(i);
			retval[i] = codePage.getName();
		} // for i
		
		return retval;
	}
	
	static public TTCodePage forName(String a_name) {
		initList();
		
		TTCodePage retval = null;
		for (TTCodePage codePage: s_list) {
			if (codePage.getName().equals(a_name)) {
				return codePage;
			}
		} // for
		
		for (TTCodePage codePage: s_list) {
			if (codePage.getCharset() == null) {
				continue;
			} // if
			
			if (codePage.getCharset().name().equals(a_name)) {
				return codePage;
			}
		} // for
		
		return retval;
	}
	
	static private void initList() {
		if (s_isInitialized)
			return;
		
		s_isInitialized = true;
		
		s_list.add(US_ASCII);
		s_list.add(Latin_1);
		s_list.add(new TTCodePage("ISO-2022-JP",
					"Japan-JIS",
					17));
		s_list.add(new TTCodePage("windows-1250",
					"Latin 2: Eastern Europe windows-1250",
					1));
		s_list.add(new TTCodePage("windows-1251",
					"Cyrillic windows-1251",
					2));
		s_list.add(new TTCodePage("windows-1253",
					"Greek windows-1253",
					3));
		s_list.add(new TTCodePage("windows-1254",
					"Turkish windows-1254",
					4));
		s_list.add(new TTCodePage("windows-1258",
					"Vietnamese windows-1258",
					8));
					
		
		// extended
		s_list.add(new TTCodePage("windows-1255",
					"Hebrew windows-1255",
					5));
		s_list.add(new TTCodePage("windows-1256",
					"Arabic windows-1256",
					6));
		s_list.add(new TTCodePage("windows-1257",
					"Windows Baltic",
					7));
		
		// TODO: 16 Thai 874
		s_list.add(new TTCodePage(
					"Thai windows-874",
					16));
		
		s_list.add(new TTCodePage("x-mswin-936",
					"Chinese: Simplified",
					18));
						
		// TODO: 19 Korean Wansung
		s_list.add(new TTCodePage(
					"Korean Wansung",
					19));
			
		s_list.add(new TTCodePage("x-windows-950",
					"Chinese: Traditional",
					20));
	}
	
	
	private String m_name;
	
	/** http://www.microsoft.com/typography/otspec/os2.htm 
	 */
	private int m_osTwoFlag = 0;
	private Charset m_charset = null;
	
	public TTCodePage(String a_charsetName, String a_name,
		int a_osTwoFlag)
	{
		if (Charset.isSupported(a_charsetName)) {
			m_charset = Charset.forName(a_charsetName);
		} // if
		
		m_name = a_name;
		m_osTwoFlag = a_osTwoFlag;
	}
	
	public TTCodePage(String a_name,
			int a_osTwoFlag)
	{
		m_name = a_name;
		m_osTwoFlag = a_osTwoFlag;
	}
	
	public String toString() {
		return m_name;
	}
	
	public String getName() {
		return m_name;	
	}
	
	
	public Charset getCharset() {
		return m_charset;	
	}
	
	public int getOsTwoFlag() {
		return m_osTwoFlag;
	}
}
